Any suggestions where to pick up a .40 nozzle? I tried a couple local heat and air companies with no luck. Nick, have you got any?
Thanks,
Bryan
Bryan, call Kraft Tours in Tulsa ask them he had a few buses with the Webasto.
I see you live in Patti Pages home town.
I built a few banks and shopping centers for Frank Robinson (RCB)
good luck
Clifford
I will check with them. Small world. I bank with them. Did you build here locally? I work for Pella only commercial projects. We have been here for a little over three years. Its a nice small town yet close enough to Tulsa to make it convenient and out of the crime rate.
Thanks,
Bryan
Hi Bryan,
I stock the .35 nozzles which will make your unit more efficient, and burn cleaner.
15 bucks + ship
Nick-
Nick,
I spoke to Brian in the tech department at Webasto the other day. He said depending on whether I had an 8 or 10 bar something or other. He said I should have the 8 bar because the age of the unit and to run a .40. It is a 40,000BTU unit and not the 45. It is a pre- 1995 unit. Maybe mid to late 80's. I have not run it yet. Bought it off the Spare Tire board. Took the heat exchanger off and pulled the canister. Everythibg looks good and as it was not run a whole lot. Just thought I would go ahead and replace the tip since Webasto suggests it every year.
Thanks,
Bryan
I've had two Webasto DBW2010 units. Both take the .35 nozzle. Webasto has upped the pressure to increase net heat output to 45K BTU from 40K. however, the nozzle is still the same at .35 at 60 degrees.
BTW the cost of a new DBW2010 is now about $4K.
Bill
Quote from: bryanhes on November 22, 2009, 07:31:55 PM
Nick,
I spoke to Brian in the tech department at Webasto the other day. He said depending on whether I had an 8 or 10 bar something or other. Thanks,
Bryan
The 8 or 10 bar is a pressure rating. I think it is a European thing similar to our PSI Jack
BAR stands for barometer.
At sea level we have 14.7 PSI that equals 1 BAR
So to change BAR to PSI just multiply it by 14.7
Frank
Quote from: Frank @ TX on November 23, 2009, 11:43:00 AM
BAR stands for barometer.
You have that backwards.
"Bar" means "pressure" -- defined by British meteorologist William Napier Shaw and derived from the Greek "baros" meaning weight.
A "barometer" is, therefore, a device for measuring pressure (think bar-o-meter).
One Bar is 100 kPa or 0.987 atmospheres, making it approximately 14.5 PSI (not 14.7 as you wrote).
FWIW.
-Sean
http://OurOdyssey.BlogSpot.com (http://ourodyssey.blogspot.com)
Sean,
I have to tell you your posts are always very technical. You must look this up online before you answer or should be on Jeopardy! ;D ;D
Thanks for the info. I actually looked it up in my service manual and figured it meant pressure.
Bryan
Quote from: bryanhes on November 23, 2009, 04:27:39 PM
... You must look this up online before you answer ...
Busted!
Really, who can remember stuff like one bar is .987 atmospheres? I can't remember Avogadro's Number, either (but for some reason still know the value of pi out to nine decimal places).
When these sorts of things come up, what I remember are things like the fact that a bar is an even decimal fraction of a Pascal, and that an atmosphere is a weird fraction, and then I look up the details so I can provide a more complete answer. (Don't get me started on how frustrating it is to me, as I suspect most engineers, that we are not using SI units in this country.)
Neither did I remember that Sir Napier Shaw was the fellow who introduced the Bar as a unit of pressure. But I knew that the words bar and barometer had the same root, which I knew to be Greek, and that bar did not stand for barometer any more than volt stands for voltmeter. I looked up the specifics.
Now my secret is out....
Of course, looking things up is a bit easier if you know how to tell meaningful search results from red herrings, too.
-Sean
http://OurOdyssey.BlogSpot.com (http://ourodyssey.blogspot.com)
And I thought Bar was a place o congregate for a cold drink :D
A little info on SI:
The SI is founded on seven SI base units for seven base quantities assumed to be mutually independent.
Other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. The SI derived units for these derived quantities are obtained from these equations and the seven SI base units.
Have I taught anyone anything yet? Ok, I really do not understand it either but am glad there are people here who can when I really need to know!
Always appreciate the advice ;D
Bryan
Nick;
I sent you a Pm. Ley me know if you don't get it.
Don
Quote from: Don Fairchild on November 24, 2009, 09:05:58 AM
Nick;
I sent you a Pm. Ley me know if you don't get it.
Don
Got it! Thanks
Nick-
I found out last night after looking over my fuel pump that it is a 7 Bar. In talking with Webasto I would either need to stay with a .40 nozzle or upgrade the pump to a 10 Bar and can use the .35 nozzle. The tech said it would not work well if I tried to go to the .35 without upgrading the pump. And they are proud of the upgrade kit.
Nick do you have a .40 nozzle? And how much?
Thanks,
Bryan
Hi Bryan,
It wouldn't be the first time Webasto Tech guy's scared you into using their parts Only!!
Think about it Bryan, you have a .40 GPM nozzle.. Do you really think you need a larger fuel pump to
spray through a smaller .35 GPM nozzle?
No, I don't stock a .40 nozzle. I would have to order 12 at a time to supply you with 1. No can do! Sorry..
Good Luck
Nick-
Bryan, Dick Wright should have it Wrico 541-744-4333 or Sure Marine 1-800-562-7797 try Dick first
good luck
Nick,
I am just trying to figure this out. When I looked up the parts in the parts book they actually showed a 7 to 10 Bar conversion kit Part # 906073B. I saw this before I called them. This is what the part line reads: 7 bar (102 psi) to 10 bar (145 psi). Here is a link as well; http://www.techwebasto.com/heater_main/5000943B.pdf (http://www.techwebasto.com/heater_main/5000943B.pdf)
I am not even sure if everything will work ok. I am going to try to bench test it tomorrow evening. I understand what you are saying as far as why would I need a larger pump to atomize fuel through a smaller nozzle, I don't know the answer but there has to be some logic I would think. Have you put a .35 nozzle in a 7 or 8 Bar pump. From everything I could find all that have the .35 have the 10 Bar (145 psi) pump. I am not saying you do not know what you are talking about, just looking for a better explanation.
I copied this from the service manual. If this is correct shouldn't I be able to adjust the pressure to 145 psi to work with a .35 nozzle
6.2.5 FUEL PUMP CHECK
A pressure gauge and the tester P/N 1302691A is
required for performing this test. A suitable gauge with
a range from 0 to 15 bar (0 to 220 PSI) can be procured
from your authorized Webasto dealer.
NOTE: The fuel pump and the fuel hoses must
be replaced every 5 years.
CHECK
– Exchange control unit with tester and swing burner
head open (see Sec. 8.5.1).
– Remove nozzle.
– Screw pressure test gauge into nozzle holder.
– Switch on heater motor via tester.
– Press fuel solenoid button on tester.
– Read pressure gauge. If adjustment is required,
release button and turn pump pressure screw 1/8 of
a turn at a time in or out to increase or decrease
pressure (see Fig. 10 for location of pressure screw).
– Repeat testing and adjustment steps until pressure is
within specified range.
– Switch off heater switch on tester.
– Unscrew pressure test gauge.
Does this seem correct? Most notibly the adjustment of pressure
Thanks,
Bryan
I know that was long winded but what I gather from reading back thru the service manual and looking at my pump is that I should be able to turn the adjusting screw until it read 145 psi with a tester and it should work with a .35 nozzle as stated in the requirement from Webasto on that particular nozzle.
Does this make sense?
Bryan
Yes Bryan, it makes sense.
If you like, I'll send you a .35 and you try it!! if it works for you, then you can pay me. If not mail it back no cost to you.
Just PM me your ship address.
Nick-
Nick,
I sent you a PM. Maybe this can determine if we can get around some of the corporate recommendations for older systems.
Thanks for the help.
Clifford,
Thank you as well
Bryan
It's in the mail today.
Nick-